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Technical Data Sheet
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SP123E — WASHER

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

SP123E: WASHER.

The WASHER is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5310-00-471-6424, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
SP123E
NSN: 5310-00-471-6424
FSC: 5310 — Nuts and Washers
CAGE: K7766 — BSI STANDARDS LIMITED (GBR)
SPECIFICATIONS
Part NumberSP123E
NSN5310-00-471-6424
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SP123E · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 3
S3S14523047Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
991-4-00187-005Reference document
Same NSN cross-reference
Reference document — Secondary reference
99-9458599Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SP123E?
SP123E is a WASHER.
What parts can replace SP123E?
There are 3 known substitutes for SP123E: S3S14523047, 991-4-00187-005, 99-9458599. Substitute compatibility should be verified for your specific system.
What is the NSN for SP123E?
SP123E is cataloged in the U.S. Government catalog under NSN 5310-00-471-6424. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.